Analysis

  • max time kernel
    150s
  • max time network
    149s
  • platform
    windows7_x64
  • resource
    win7-20240729-en
  • resource tags

    arch:x64arch:x86image:win7-20240729-enlocale:en-usos:windows7-x64system
  • submitted
    01-08-2024 20:59

General

  • Target

    XClient.exe

  • Size

    80KB

  • MD5

    bfa950b37b6a4f8de71af861e677a8b4

  • SHA1

    2ee40bfbf2964d92c82256e5924169295dfdd225

  • SHA256

    07f94f8f6061ba95899914496edc5854aa810de56797d9004875276d60e21ade

  • SHA512

    235b514fac01b24edaef3aeb4209676789b6ba9264a8798cb7ae48c26d2455cdd8f254e92bbba688535acb69fd77b3c0a0a549cf97ece84c235cc74f72234e1a

  • SSDEEP

    1536:EI5NuEGJkEtydWqZQSp1eS+b59gxzhfxdl/5m6qeo//3Oy/4IK4Dax5:Eg1GhtktQGAS+b59cJ4eA/OlINDab

Malware Config

Extracted

Family

xworm

C2

full-self.gl.at.ply.gg:45212

Attributes
  • Install_directory

    %AppData%

  • install_file

    XClient.exe

Signatures

  • Detect Xworm Payload 1 IoCs
  • Xworm

    Xworm is a remote access trojan written in C#.

  • Command and Scripting Interpreter: PowerShell 1 TTPs 4 IoCs

    Run Powershell to modify Windows Defender settings to add exclusions for file extensions, paths, and processes.

  • Adds Run key to start application 2 TTPs 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • Suspicious behavior: EnumeratesProcesses 5 IoCs
  • Suspicious use of AdjustPrivilegeToken 6 IoCs
  • Suspicious use of SetWindowsHookEx 1 IoCs
  • Suspicious use of WriteProcessMemory 12 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\XClient.exe
    "C:\Users\Admin\AppData\Local\Temp\XClient.exe"
    1⤵
    • Adds Run key to start application
    • Suspicious behavior: EnumeratesProcesses
    • Suspicious use of AdjustPrivilegeToken
    • Suspicious use of SetWindowsHookEx
    • Suspicious use of WriteProcessMemory
    PID:2780
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Local\Temp\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:1944
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2804
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionPath 'C:\Users\Admin\AppData\Roaming\XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2888
    • C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe
      "C:\Windows\System32\WindowsPowerShell\v1.0\powershell.exe" -ExecutionPolicy Bypass Add-MpPreference -ExclusionProcess 'XClient.exe'
      2⤵
      • Command and Scripting Interpreter: PowerShell
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:2708

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

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Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Windows\Recent\CustomDestinations\590aee7bdd69b59b.customDestinations-ms
    Filesize

    7KB

    MD5

    84f858b39efd6d72ff2b2f6475188902

    SHA1

    5e3195fb7ca488e9e95cc5a01932c757c671b80b

    SHA256

    d3c1c34530ebbd51b8d5e3a1efd758154cfe6e0acafac49998b9ae30b6ebe90c

    SHA512

    ac793dc4e62cd2b4693b09c618c87b908d89c74ba5067bddde5656798331f3b816cfec1305f4f50b701fc2193fd51cd0ac041c43fd42669ebe2b84f938f4b0cd

  • \??\PIPE\srvsvc
    MD5

    d41d8cd98f00b204e9800998ecf8427e

    SHA1

    da39a3ee5e6b4b0d3255bfef95601890afd80709

    SHA256

    e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855

    SHA512

    cf83e1357eefb8bdf1542850d66d8007d620e4050b5715dc83f4a921d36ce9ce47d0d13c5d85f2b0ff8318d2877eec2f63b931bd47417a81a538327af927da3e

  • memory/1944-6-0x00000000027D0000-0x0000000002850000-memory.dmp
    Filesize

    512KB

  • memory/1944-7-0x000000001B400000-0x000000001B6E2000-memory.dmp
    Filesize

    2.9MB

  • memory/1944-8-0x0000000002A70000-0x0000000002A78000-memory.dmp
    Filesize

    32KB

  • memory/2780-0-0x000007FEF5EA3000-0x000007FEF5EA4000-memory.dmp
    Filesize

    4KB

  • memory/2780-1-0x0000000001330000-0x000000000134A000-memory.dmp
    Filesize

    104KB

  • memory/2780-28-0x000000001B4D0000-0x000000001B550000-memory.dmp
    Filesize

    512KB

  • memory/2780-29-0x000007FEF5EA3000-0x000007FEF5EA4000-memory.dmp
    Filesize

    4KB

  • memory/2780-30-0x000000001B4D0000-0x000000001B550000-memory.dmp
    Filesize

    512KB

  • memory/2804-14-0x000000001B5B0000-0x000000001B892000-memory.dmp
    Filesize

    2.9MB

  • memory/2804-15-0x0000000000460000-0x0000000000468000-memory.dmp
    Filesize

    32KB